On my way to Budapest I will be stopping in Frankfurt for a few hours and visiting a friend. I want to give her one of my old license plates (Texas changed designs a few years ago and didn't ask for them back) because she'd be thrilled by something like that - but since our checked bags won't be accessible, I would need to carry it on. Would the TSA give me any grief if I had it in a small carry-on bag? I don't think the edges constitute anything close to "knife-like" but since it's a cornered piece of thin aluminum I didn't know what they would do.

Thank you!